This is a Tempearl electric shock prevention guard. By using it on outlets near water, it protects people and homes from electrical leakage. Electric shock prevention outlet guard For AC100V 15A. Can be used with household outlets. *This is a used item, so please understand before purchasing. *We will disinfect with alcohol and carefully package the item before shipping. *We are very sorry, but we do not accept returns after purchase to prevent product substitution. Thank you for your understanding.